Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach
IntroductionSea ice extent increased in the Pacific Arctic Ocean during 2021 owing to the reversal of the Beaufort Gyre, unlike in previous years. The increased sea ice concentration may restore the marine ecosystem to its previous state; nevertheless, the precise conditions and mechanisms involved...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2025.1484609/full |
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| author | Yuya Hibino Kohei Matsuno Kohei Matsuno Amane Fujiwara Yoshiyuki Abe Nanami Hosoda Motoyo Itoh Atsushi Yamaguchi Atsushi Yamaguchi |
| author_facet | Yuya Hibino Kohei Matsuno Kohei Matsuno Amane Fujiwara Yoshiyuki Abe Nanami Hosoda Motoyo Itoh Atsushi Yamaguchi Atsushi Yamaguchi |
| author_sort | Yuya Hibino |
| collection | DOAJ |
| description | IntroductionSea ice extent increased in the Pacific Arctic Ocean during 2021 owing to the reversal of the Beaufort Gyre, unlike in previous years. The increased sea ice concentration may restore the marine ecosystem to its previous state; nevertheless, the precise conditions and mechanisms involved remain unclear.MethodsIn this study, the 2008–2017 period was defined as “the sea ice retreat year,” and its zooplankton community distribution representative was estimated using generalized dissimilarity modeling (GDM). Subsequently, we assessed the effect of delayed sea ice melt on the zooplankton community by comparing the zooplankton community of the sea ice retreat year with that in 2021.ResultsIn GDM, numerous satellite parameters significantly affected the zooplankton distribution, with the highest effect during the open-water period and annual primary production (APP) and the lowest in water temperature. The effect of APP and temperature on zooplankton similarity was high around the Bering Strait owing to the advection of Pacific copepods (Eucalanus bungii, Metridia pacifica, and Neocalanus spp.) and synchronized inflow of warm Pacific water. Under significant warming scenarios (Shared Socioeconomic Pathway [SSP]1-2.6 and SSP5-8.5), GDM-based multiple effects predicted that the zooplankton communities in high latitudes will be more affected than those on the southern shelf (northern Bering Sea to southern Chukchi Sea). In 2021, the total abundance across the northern Bering Sea to the Chukchi Sea shelf region was lower than that of the community during the sea ice retreat year. However, certain species (Limacina helicina and Pacific copepods) increased locally (northern Bering Sea and Barrow Canyon) because of the increasing volume of Pacific origin water.DiscussionContrary to the reported increase trend on zooplankton, low primary productivity and phenological mismatch for zooplankton may prevail in the Pacific Arctic Ocean, resulting in a low abundance during autumn 2021. |
| format | Article |
| id | doaj-art-199d0b8622c4478c8a9a206c679c25fb |
| institution | Kabale University |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Marine Science |
| spelling | doaj-art-199d0b8622c4478c8a9a206c679c25fb2025-01-29T05:21:23ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-01-011210.3389/fmars.2025.14846091484609Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approachYuya Hibino0Kohei Matsuno1Kohei Matsuno2Amane Fujiwara3Yoshiyuki Abe4Nanami Hosoda5Motoyo Itoh6Atsushi Yamaguchi7Atsushi Yamaguchi8Faculty/Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, JapanFaculty/Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, JapanArctic Research Center, Hokkaido University, Sapporo, Hokkaido, JapanResearch Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokosuka, JapanIntegrated URA Office, Hokkaido University, Sapporo, Hokkaido, JapanFaculty/Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, JapanIntegrated URA Office, Hokkaido University, Sapporo, Hokkaido, JapanFaculty/Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, JapanArctic Research Center, Hokkaido University, Sapporo, Hokkaido, JapanIntroductionSea ice extent increased in the Pacific Arctic Ocean during 2021 owing to the reversal of the Beaufort Gyre, unlike in previous years. The increased sea ice concentration may restore the marine ecosystem to its previous state; nevertheless, the precise conditions and mechanisms involved remain unclear.MethodsIn this study, the 2008–2017 period was defined as “the sea ice retreat year,” and its zooplankton community distribution representative was estimated using generalized dissimilarity modeling (GDM). Subsequently, we assessed the effect of delayed sea ice melt on the zooplankton community by comparing the zooplankton community of the sea ice retreat year with that in 2021.ResultsIn GDM, numerous satellite parameters significantly affected the zooplankton distribution, with the highest effect during the open-water period and annual primary production (APP) and the lowest in water temperature. The effect of APP and temperature on zooplankton similarity was high around the Bering Strait owing to the advection of Pacific copepods (Eucalanus bungii, Metridia pacifica, and Neocalanus spp.) and synchronized inflow of warm Pacific water. Under significant warming scenarios (Shared Socioeconomic Pathway [SSP]1-2.6 and SSP5-8.5), GDM-based multiple effects predicted that the zooplankton communities in high latitudes will be more affected than those on the southern shelf (northern Bering Sea to southern Chukchi Sea). In 2021, the total abundance across the northern Bering Sea to the Chukchi Sea shelf region was lower than that of the community during the sea ice retreat year. However, certain species (Limacina helicina and Pacific copepods) increased locally (northern Bering Sea and Barrow Canyon) because of the increasing volume of Pacific origin water.DiscussionContrary to the reported increase trend on zooplankton, low primary productivity and phenological mismatch for zooplankton may prevail in the Pacific Arctic Ocean, resulting in a low abundance during autumn 2021.https://www.frontiersin.org/articles/10.3389/fmars.2025.1484609/fullBeaufort Gyrebiodiversity modelpredictiontaxonomic diversityincrease in sea ice extent |
| spellingShingle | Yuya Hibino Kohei Matsuno Kohei Matsuno Amane Fujiwara Yoshiyuki Abe Nanami Hosoda Motoyo Itoh Atsushi Yamaguchi Atsushi Yamaguchi Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach Frontiers in Marine Science Beaufort Gyre biodiversity model prediction taxonomic diversity increase in sea ice extent |
| title | Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach |
| title_full | Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach |
| title_fullStr | Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach |
| title_full_unstemmed | Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach |
| title_short | Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach |
| title_sort | effect of delayed sea ice retreat on zooplankton communities in the pacific arctic ocean a generalized dissimilarity modeling approach |
| topic | Beaufort Gyre biodiversity model prediction taxonomic diversity increase in sea ice extent |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2025.1484609/full |
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